Ocean Acidification

Year 2 resource as intro to Ocean Acidification
http://www.pmel.noaa.gov/co2/OA/background.html

• Ocean Acidification – The BIG global warming story
• Anthropogenic carbon and ocean pH
• Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms
• The Ocean in a High CO2 World
• Impacts of Ocean Acidification on Coral Reefs and Other Marine Calcifiers: A Guide for Further Research
• Position analysis: CO2 emissions and climate change: OCEAN impacts and adaptation issues
• Ocean acidification due to increasing atmospheric carbon dioxide
• Oceanography: Sick Seas -
  

  Ruttimann 2006.pdf
  

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• ABC News Story- Change in Ocean Chemistry

*Lesson outline:

• Investigate the effects of CO2 in today’s oceans. Students will receive background information on coral reefs, pH (acid/base), ocean system through guided inquiry.

Essential Questions:

• How does an increase in atmospheric CO2 effect our oceans? What role does climate change have in ocean chemistry?

Date, Time Location:

• Monday, May 4th 2009
• Hermon Middle School
• 8:00 – 11:00 am
• Two 80 minute periods

Specific goal: skill or concept to be achieved by the lesson:

• Students will be about to define pH
• Students will be able to define a buffer, and explain in general terms that carbonate buffer of seawater.
• Students will be able to identify how an increase in atmospheric carbon dioxide might affect the pH of the ocean, and will be able to discuss how this alteration in pH might affect biological organisms.

Materials:

• 1.5 L of 0.1 mol Sodium Hydroxide
• White vinegar gallon
• Citric acid for possible spills (500g)
• MSDA Sheets

Plan for presentation:

• Presentation (learning results, student work/pictures etc…)
• Possibly a poster

Teacher created lessons for introducing pH to 7th graders
systems.cwk
pHpresurvey.cwk
phexploration.cwk